biogas wastewater Articles
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The performance of a modified Anaerobic Baffled Reactor (ABR) treating high strength synthetic wastewater
In the present study the overall performance of a modified Anaerobic Baffled Reactor (ABR) treating high strength synthetic wastewater was first described. The reactor differs from the original ABR as follow: a modified internal lamella separator was positioned at top of each up-flow sections to separate the biogas and liquid to reduce the sludge wash out. The initial organic loading rate was ...
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A critical review of experimental and predicted methane generation from anaerobic codigestion
Anaerobic digestion is increasingly being considered as a treatment option for an extensive range of waste biomass, due to the potential for energy recovery, in the form of methane production, and lower sludge volumes relative to aerobic treatment processes. Furthermore, when two substrates are codigested (i.e. digested together), added benefits are foreseeable, such as increased methane ...
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Effects of influent fractionation, kinetics, stoichiometry and mass transfer on CH4, H2 and CO2 production for (plant-wide) modeling of anaerobic digesters
This paper examines the importance of influent fractionation, kinetic, stoichiometric and mass transfer parameter uncertainties when modeling biogas production in wastewater treatment plants. The anaerobic digestion model no. 1 implemented in the plant-wide context provided by the benchmark simulation model no. 2 is used to quantify the generation of CH4, H2 and CO2. A comprehensive global ...
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Built-to-Last: GTI Cover Replaced After 20 Years
The Customer: Creston is a small town in the Kootenay region of southern British Columbia, Canada. Since 1959, it has been home to Columbia Brewing, makers of Kokanee beer, now owned by Anheuser-Busch InBev. The Customer’s Needs: The Town of Creston wastewater treatment facility treats both domestic and industrial (brewery) wastewater. The brewery wastewater has been treated anaerobically ...
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Use of Waste-to-Energy Sludge Growing in Europe
This byproduct of anaerobic digestion is fertilizing fields and helping divert waste from landfills Anaerobic digestion (AD) is an important waste-to-energy technology that harvests energy — in the form of biogas — from organic pollutants in wastewater and solid waste. Anaerobic digestion is ideal for challenging wastewater streams that might cause significant public health risk if ...
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Green Energy Applications Guide to Flow Measurement
Provides technical discussion and illustrations for nine (9) different green energy and green-house gas flow measurement applications. Includes landfill gas, biomass fermentation, wastewater digesters, on-farm biogas recovery, ethanol production/refining, coal mine and coal bed methane (CMM, CBM), biomass gasification, flare gas and flue gas. Discussion includes overview of each application and ...
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Janesville Wastewater Project
Location: Janesville Wastewater Plant Janesville, WI Partners: City of Janesville AECOM Unison Solutions BioCNG, LLC – Cornerstone Contact: Daniel Lynch, P.E. Utility Director lynchd@ci.janesville.wi.us Feedstock: Wastewater Biogas Vehicles Fueled: Up to 40 light-duty municipal vehicles Maximum Annual Fuel Production: 3,650 GGE Payback Period: 2-3 ...
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Microalgae growth for nutrient recovery from sludge liquor and production of renewable bioenergy
Proof-of-concept has been demonstrated for a process that will utilize nutrients from sludge liquor, natural light, and CO2 from biogas to grow microalgae at wastewater treatment plants. This process will reduce the impact of returning side-streams to the head of the plant. The produced algae will be fed to anaerobic digesters for increased biogas production. Dewatering of anaerobically digested ...
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Inter-stage thermophilic aerobic digestion may increase organic matter removal from wastewater sludge without decreasing biogas production
Combining aerobic and anaerobic digestion in a two-stage system can improve the degradation of wastewater sludge over the use of either technology alone. But use of aerobic digestion as a pre-treatment before anaerobic digestion generally reduces methane production due to loss of substrate through oxidation. An inter-stage configuration may avoid this reduction in methane production. Here, we ...
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